QSC LS218 5,000W 2x18" Active Subwoofer with Dante and Cardioid Mode

The QSC LS218 is a high-output active subwoofer designed for professional live sound, portable PA systems, networked A/V productions, and fixed installations. Its efficient 5,000W Class D amplifier with Power Factor Correction drives two purpose-designed 18-inch long-excursion, direct-radiating low-frequency drivers. The system delivers extended low-frequency performance down to 41Hz and a maximum peak SPL of 141dB, providing substantial bass output for demanding applications. Its universal 100-240 VAC power supply supports flexible operation in different environments.

Selectable Omnidirectional and Cardioid radiation modes provide control over low-frequency projection, while Deep mode adds further extension for bass-heavy applications. The LS218 incorporates Acoustic Linear Phase technology to help maintain coherent performance with other QSC loudspeakers. Dante networking provides digital audio connectivity and integration with compatible Q-SYS systems, while QSC SysNav software enables users to design, configure, control, and monitor compatible loudspeaker arrays. Cardioid operation requires a minimum of two LS218 units.

The LS218 features a rugged 15mm birch plywood enclosure finished with a durable polyurea coating for demanding professional use. Four low-noise, heavy-duty casters simplify transportation, while the enclosure supports both vertical and horizontal deployment configurations. M20 threaded pole receivers accommodate compatible loudspeaker poles, array frames, and ground-stack accessories for flexible system deployment. With its high-power amplification, dual 18-inch drivers, advanced DSP, Dante networking, and durable touring construction, the LS218 provides a complete low-frequency solution for professional sound reinforcement and large-scale A/V applications.

Product Specifications:

Product Type: Powered Active Subwoofer

Powered: Yes

LF Driver Size: 2 x 18" Subwoofer

Amplifier Type: Class D

Total Power: 5,000W Peak

Power Factor Correction: Yes

Input: 1 x XLR

Output: 1 x XLR Thru

Data I/O: 2 x EtherCON for Dante and QSC SysNav In/Thru

Frequency Range: 35Hz to 111Hz (-10dB)

Frequency Response: 41Hz to 98Hz (-6dB)

Maximum Peak SPL: 141dB at 1m

Radiation Modes: Omnidirectional and Cardioid

Deep Mode: Yes

Acoustic Linear Phase: Yes

Networking: Dante and Q-SYS Integration

Control Software: QSC SysNav

Mounting Options: Floor and Fly

Deployment: Vertical and Horizontal

Pole Mount: M20 Threaded Pole Receivers

Power Source: 2 x PowerCON TRUE1 In/Out

Power Supply: Universal 100-240 VAC, 50-60Hz

Enclosure Material: 15mm Birch Plywood with Polyurea Coating

Casters: 4 Low-Noise Heavy-Duty Casters

Application: Live Sound, Portable PA, A/V Production, and Fixed Installation

Product Weight: 184 lbs.

Product Dimensions (L x W x H): 27.4" x 40.3" x 25.1"